code: def __contains__(self, name: tp.Any) -> bool:
      return name in self._rngs
  
imports: from __future__ import annotations
  import dataclasses
  import hashlib
  import typing
  import jax
  import numpy
  from flax.experimental.nnx.nnx import errors, filterlib, tracers
label_desc: Use image node_id 8 for calling the Rngs obj's underlying member method code with example usage: obj.__contains__(name) and returns: unknown